3.1.3.1.5 category

The <category> element represents
any category by which a topic might be classified for retrieval
or navigation. For example, the categories could be used to group
topics in a generated navigation bar. Topics can belong to multiple
categories.

Such classifications are likely to come from an enumerated
or hierarchical set.

This element is equivalent to both
the Coverage element and the Subject element in Dublin Core.

Contains

Note: These models represent only the default document types distributed by OASIS.
Actual content models will differ with each new document type.